var previous_tab_id = 0;
function tabClick(id)	{
	if (previous_tab_id != id) {
		document.getElementById('tab'+id).className = 'homeTabSelected';
		document.getElementById('tabc'+id).style.display = 'block';
		document.getElementById('tab'+previous_tab_id).className = 'homeTab';
		document.getElementById('tabc'+previous_tab_id).style.display = 'none';
		previous_tab_id = id;
	}
}function tabClickN(id)	{
	if (previous_tab_id != id) {
		document.getElementById('tab'+id).className = 'homeTabSelectedN';
		document.getElementById('tabc'+id).style.display = 'block';
		document.getElementById('tab'+previous_tab_id).className = 'homeTabN';
		document.getElementById('tabc'+previous_tab_id).style.display = 'none';
		previous_tab_id = id;
	}
}